Pipe-bowl reamer.



F. G. PAVELEG. PIPE BOWL RBAMER.

APPLICATION FILED 11017.12, 1912.-

1,1 17,235 Patnted Nov. 17, 1914.

FRANK G. PAVELEC, .OF ST. LOUIS, MISSOURI.

PIPE-BOWL REAMER.

Specification of Letters Patent.

Patented Nov. 17, 1914'.

Application filed November 12, 1912. Serial No. 731,014.

To all whom it may concern.

Be it known that I, FRANK G. PAvnLEc, a citizen of the United States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Pipe- Bowl Reamer-s, of which the following is a specification.

This invention relates to improvements in pipe bowl reamers and has for its object a body arranged adjustable to fit any size pipe bowl and is for the purpose to remove the crust which cakes or adheres to the inner surface of the pipe.

Figure 1 is a perspective view of my invention shown in position in a pipe bowl. Fig. 2 is a side elevation with the upper portion in section showing its construction. Fig. 3 is an edge view of'the same. Flg. is a horizontal sectional view taken on the line -ilof Fig. 2. Fig. 5 is a plan view of the blank of which my invention is constructed. Fig. 6 is a side elevation of a modified form, the upper portion belng in section showing its construction. Fig. 7 is an edge view of the same. Fig. 8 is a horizontal sectional view taken on the line 88 of Fig. 6. Fig. 9 is a plan view of the blank with parts broken away, of

.which the device is constructed.

In carrying out my invention I provide a pipe bowl reamer consistlng of a body portion 10 stamped out of a strip of sprmg material 11, the same bemg bent at the point indicated by the numeral 12; the sides 13 and 1-1 of the strip forming the body are suitably bent as shown having a bulged portion 15, which portion is designed to contact with the inner surface 16 of the pipe bowl 17.

One end of the spring material is provided with flanges 18, which flanges are bent downwardly as shown in Figs. 2 and 3 forming a housing, or a smooth body surface against which the fingers and thumb contact for properly manipulating the device. In this body portion is arranged the adjusting feature which I will now describe.

In forming and assembling the device, the material is bent at the point indicated by the numeral 19, forming a horizontal portion 20, then bent upwardly forming a vertical portion 21 and again bent forming a horizontal portion 22; the flanges'18 on this body portion are bent downwardly at right an les to the horizontal portion forming the inclosure; the pro ecting end 23 1s bent downwardly and in the same and the portion 21 are formed apertures 24: in which a screw 25 has bearing; a head 26 is formed on one end of the screw, the other end being suitably swaged as indicated by the numeral 27 acting as a support for the screw retaining the same in position.

The opposite end of the strip of material is bent at the point indicated by the numeral 28 and provided with an aperture 29. The bent portion extends horizontally and is then bent downwardly forming the projection 30 in which is formed an internallv screw-threaded bore 31, and by the manipulation of the screw the portion 14 of the body is adjusted wide or narrow so as to regulate the width of the bulged portion so as to accommodate various sizes of pipe bowls. The lower portions of the members 13 and 11. and from the point 12 upwardly to approximately the widest portion of the bulge is suitably ground down taperin the material sufficiently so as to permit the bodv to freely give at the point 12 without altering the shape of each side. The inner surface of the members 13 and 14 from the point 12 to the widest portion of the bulge 1s beveled as indicated by the numeral 32 forming a cutting edge 33.

The device when inserted in the bowl of a p1pe 1s so adjusted as to permit the bulged portion to enter into the mouth of the bowl and by means of the thumb and fingers it is turned within the bowl and the cutting edges have a. tendency to ream the crust from the inner wall of the pipe bowl without in any manner removing any portion of material from which the pipe is constructed, yet-leaving the inner surface of the pipe bowl absolutely smooth. If the pipe should be extremely caked or the crust' extraordinarily thick the operation of the reamer is repeated again and again and after the first operation the device is adjusted by means of the screw and again inserted and the action repeated.

In Fig. 6 I show a modified form, the construction being similar with the exception of the head or adjusting portion, in this instance the horizontal portion is provided with an elongated slot 34, a screw 35 supported on the horizontal portion and extending through the slot, its threaded por tion 36 operating in an internally screwthreaded bore formed in the portion 37; by this construction, in order to adjust the body is tightened end the b0 3 is then held in its adjusted position. The cutting portion of the hody in this instance in'stea of being beveled is perfectly straight asv indicuted'hy the numeral 38.

4 The device is simple construction, is eheepto manufacture and by the use of the same a pipe howl can he thoroughly cleed and the crust or cake on the inner well removed.

Having fullyv whet I claim is: c

1. A ipe bowl reamer, comprising e'flenportion eonsistin of e, peir ot arms ternnnatin having downwar y bent sides to provide e housing to receive the upper endof one of said arms; a screw bolt mounted to in said housing, and the upper end of one of the arms; which n 18 provided with e in en en surgedportion mimee ing in enenlerged portionev the u per end fof one of seid arms provided-with Werdly bent sides-to provide'efhousing to receivethe upper end ,of the otherarm; a screw bolt mounted-to tum between the downeeid screw holt,;sub-

downwardly bent omtionsendin the up er end'of one of sai' members; which en is screwjthreeded to receive -seidscrew bolt; i end-e oint formed etxthegepexiofthe-joindescrihed my nvention ingf en s of both offthe; {arms forming said hexihle'.-memher,vsubstentielly ies specified.

5 testimony whereofg-l heveksigned my nemeto this -specificetion,r-in presence of W" e fieee eeee- 1 .FRANKG V-PALEC. 

